<div>
    <label> please input Phone Number:
        <input style="width: 100px;" type="text" ng-model="model.phoneNumber">
    </label>
</div>

<div class="x-window-bottom">
    <div class="x-button" ng-click="back($event)">Back</div>
    <div class="x-button" ng-click="next($event)">Next</div>
</div>